C program to check validity of triangle

Q:Write a c program to check whether a triangle is valid or not ..when the three angles of the triangle are entered through keyboard.A triangle is valid if sum of all angles is 180

#include

#include

void main()

{

int A1,A2,A3;

clrscr();

printf("enter three angles: ");

scanr("%d",&A1);

scanf("\n%d",&A2);

scanf("\n%d",&A3);

if(A1+A2+A3==180)

{

printf("valid tringle");

}

else

{

printf("invalid tringle");

}

getch();

}